Hi Blade,
It's completely natural to feel this way. I lost one of my closest friends end of November when his surgery went well and was discharged as he was in good health. 3 days later, he started having complications with his organs and unfortunately, he didn't make it. My surgery was going to 2 weeks after his, so I could have it before Christmas. That really put the fear of God in me. I finally regained my courage to go with my own surgery at the begInning of March. And just like Kurstywursty, I too started making arrangements if I didn't make it through and I even indirectly said goodbye to friends as I didn't tell any of my friends apart from 2 of my best friends.
However, as Los in it has quite rightly pointed out, it's good to turn the stats around as there is such a high success rate. The amount of people in this forum that are months and even years post surgery who are now living such a better and healthier life (and can do more fun stuff with their kids rather than sitting on the sideline watching their kids grow up), is extremely reassuring!!!
I am now nearly 6 weeks in and apart from the normal pains and insecurities that someone naturally has post op because they are adjusting to their new body and new way of eating, I am doing really well. Even up to a week before my Op, I was still very fearful and emotional. However, I decided that the more I stressed about it, the harder my recovery would be so I decided to let go of this burden I had been carrying around about losing my friend and decided to go through my own wholeheartedly. Even on the day of my Op and being wheeled into the theatre, I was so calm and finally found my peace!!!
Having joined the forum after my surgery, it's given me the courage and confidence to review my own progress and now, having fought my initial fear of not making it, I'm excited about what the future holds for me... And my family!!!!! My blood pressure has already gone down in the 5 weeks and I'm hoping that I can soon be off them for good!!!
I'm really glad I fought through that fear and took the plunge... It'll be a very courageous thing to do for yourself and your family!! Hope this helps?!
Good luck and keep us posted!!